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Co-Existing Pyroxenes in Metamorphic Rocks

Published online by Cambridge University Press:  01 May 2009

M. J. O'Hara
M. J. O'Hara
Affiliation:
Grant Institute of Geology, University of Edinburgh
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Abstract

Chemical and optical data for eighteen granulite facies pyroxene pairs are compared. Compositions and tie-line trends derived from optical data are shown to be unreliable and it is recommended that no attempt be made to subdivide the granulite facies on the basis of optically derived tie-lines.

Type
Articles
Information
Geological Magazine , Volume 97 , Issue 6 , December 1960 , pp. 498 - 503
Copyright
Copyright © Cambridge University Press 1960

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References

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